Well I managed to change the mount. The old one has a P on it so I'm guessing OEM with maybe 120k miles on it.
The new one looks the same as the one in the photo, purchased from DMGRS.
I'm 99% sure I've cured my loud clonk and drive line shunt when I pull away .��
I'm still getting a bit of shaking/vibration into the cabin on tick over though , so im thinking of changing the other mounts too.
Is there 3 more? Gearbox, top left mount and the round mount below it?
Edit: as you can see from the pictures, it's no wonder I was getting a shunt and knock when moving off.
But the new mount is litterly looking a lot happier for it's self. It's even smiling !